How quickly can your team mobilise for main engine repair?

Standard mobilisation is within 4–8 hours of confirmed nomination. For emergency calls at outer anchorage we can dispatch specialists onboard within 2 hours through our stand-by launches and port pilots.

Do you handle documentation, customs and port formalities?

Yes. Our licensed shipping agency division handles inward and outward clearance, immigration, customs, port dues, crew changes, spares landing and all statutory paperwork on your behalf.

Are your operations compliant with IMO, SOLAS and MARPOL standards?

Every operation follows IMO conventions, SOLAS, MARPOL, ISM Code and OCIMF guidelines. Our engineers hold class-recognised certifications and jobs are documented with class-ready reports.

How do I request a quotation?

Send vessel particulars (IMO, LOA, port, ETA) and the scope of work to sales.bdmarineservicespvtltd@gmail.com or use our Get A Quote form. You will receive a firm quotation within 60 minutes during working hours.

Main Engine Repairs

MAN B&W, Wärtsilä, Sulzer and MAK main-engine overhauls — piston, liner, bearings, fuel system and turbocharger.

Overview

Professional Main Engine Repair Services

Bangladesh Marine Service Private Limited delivers professional main engine repair, overhaul and technical service to shipowners and managers calling at Chittagong, Mongla and Payra Ports. Our chief engineer-led team is experienced on MAN B&W, Wärtsilä, Sulzer, MAK, Mitsubishi, Hyundai, Doosan, RTA and RTflex slow-speed and medium-speed engines.

Every overhaul is executed with genuine spares, calibrated tools and comprehensive reporting — including running-hour records, clearance sheets, torque logs, photographs and class survey coordination when applicable — allowing owners to complete essential main engine work during port stay rather than shipyard visits abroad.

Our Main Engine Repair Services

Piston Pulling & Overhaul

Piston Ring Renewal & Groove Measurement

Cylinder Liner Extraction & Renewal

Cylinder Head Overhaul

Exhaust Valve Overhaul & Seat Grinding

Fuel Valve Overhaul & Pop Testing

Fuel Pump Plunger Barrel Overhaul

High-Pressure Fuel Pipe Renewal

Main Bearing Renewal & Clearance Check

Crankpin Bearing Renewal

Crosshead Bearing Renewal

Crankshaft Deflection Measurement

Turbocharger Overhaul (ABB, MHI, KBB, Napier)

Turbocharger Rotor Balancing

Scavenge Air Cooler Cleaning

Cooling Water Space Cleaning

Camshaft Inspection & Overhaul

Governor Overhaul & Timing Check

Performance Analysis & Indicator Diagrams

Class-Witnessed Post-Overhaul Trials

Chief Engineer-Led Supervision

Every main engine job is led by a senior chief engineer or motor superintendent, ensuring that decisions on measurement, clearance, spare replacement and reassembly are taken by an experienced hand. This eliminates rework and protects owners from downstream failures.

Genuine & Reconditioned Spares

We supply genuine OEM spares from MAN B&W, Wärtsilä, MAK and Sulzer authorised channels, together with certified reconditioned spares where cost efficiency and lead time justify. All spares are traceable and documented.

Turbocharger Overhaul

In-situ or workshop overhauls of ABB, MHI, KBB and Napier turbochargers are performed with rotor balancing, bearing renewal, nozzle ring inspection and full performance test — restoring boost pressure and fuel efficiency to design values.

Crankshaft, Bearings & Alignment

Main, crankpin and crosshead bearing measurement and renewal are executed to maker's tolerances. Crankshaft deflection measurement, alignment checks and reporting to class ensure engine long-term reliability.

Post-Overhaul Trials & Reporting

After reassembly, the engine is started, load-trialled and performance-recorded with indicator diagrams, exhaust temperatures and combustion data. Class-ready reports, spares lists, photographs and test certificates are delivered before sailing.

Key Features

Piston Overhaul

Piston pulling, ring change, skirt inspection and re-installation with class survey.

Cylinder Liner Change

Liner extraction, cooling water space cleaning and new liner installation.

Bearing Renewal

Main, crankpin and crosshead bearing measurement, replacement and clearance check.

Fuel System Overhaul

Fuel valve, plunger barrel and high-pressure pipe overhaul with pop testing.

Turbocharger Overhaul

In-situ or workshop overhaul of ABB, MHI, KBB and Napier turbochargers.

Crankshaft Deflection

Deflection measurement, alignment check and reporting to class.

Working Process

Pre-Arrival Plan

Owner's job spec reviewed, spares confirmed, tools mobilised.

Preparation

Engine stopped, cooled, lock-out/tag-out completed with C/E.

Overhaul

Executed round-the-clock by chief engineer-led team with photographic log.

Reassembly

Torqued, clearance-checked and lube-oil recirculated per maker's manual.

Trials

Engine started, load trial run and performance readings recorded.

Equipment Used

▸Hydraulic tensioning jacks (all sizes)
▸Torque wrenches, feeler & bore gauges
▸Portable line-boring & re-metalling shop
▸Fuel valve test bench
▸Turbo-charger balancing machine

Industries Served

▸Bulk Carriers
▸Container Vessels
▸Tankers
▸Offshore Support Vessels

Why Choose Us

▸Chief engineer-led supervision
▸OEM-standard workmanship
▸Fully documented for class
▸Cost saving vs foreign yards

Our Commitment

The main engine is the heart of every vessel. Our commitment to shipowners is disciplined execution, OEM-standard workmanship, transparent documentation and full class support — all delivered during commercial port stay with the shortest achievable downtime.

Bangladesh Marine Service Private Limited is trusted by leading shipowners and technical managers for main engine work in Bangladesh because we combine competitive local costs with international-standard quality control.

Frequently Asked Questions

We deliver main engine repair at Chittagong Port, Mongla Port and Payra Port, plus outer anchorage and Kutubdia anchorage on 24/7 basis with dedicated port teams in each location.

Inquiry Form

Request Main Engine Repairs

Send vessel particulars and scope — firm quotation within 60 minutes.